For much of the last decade, credit card companies and issuers have fine-tuned security to the point where if any suspicious activity occurs on a cardholder account, that cardholder will receive an alert. That same sort of transaction and behavioral analytics is starting to come into other business sectors and walks of life.

Even the most honest customers can look risky if they frequently travel. Their movements can throw off traditional vetting techniques that authenticate transactions by looking at location as a risk factor.

The three bitcoin wallets that are linked to the WannaCry malware, which hit hundreds of thousands of networks using Microsoft Corp.’s operating system in 150 countries, were emptied out Thursday morning, analysts have confirmed.